Starting running back LeSean McCoy has picked up just 175 yards from 60 carries so far in 2014, having reached 395 off just two more touches last season.
The head coach told reporters: "One thing I know about LeSean and everybody loves is he wants to win. I know he knows we're 3‑0.
"We've got to do a better job in the run game just overall, but I think he's excited that we're 3‑0. Sometimes they come in bunches and you can string a couple games back to back.
"There are a lot of times that there wasn't a lot of movement on Sunday, and that's kind of what we're dealing with."
The Eagles face the San Francisco 49ers this weekend.